oj.uz

Submission #753238

# Submission time Handle Problem Language Result Execution time Memory
753238 2023-06-04T22:32:03 Z boyliguanhan The Big Prize (IOI17_prize) C++17
100 / 100
 75 ms 10808 KB 
#include "prize.h"
#include<bits/stdc++.h>
using namespace std;
set<int> st[200100];
int l[200100];
int calc(int x, int y) {
    if(x>y)return-1;
    int z = x+y>>1;
    vector<int>v=ask(z);
    int k=(l[z]=v[0])+v[1], t=-1;
    if(!k) return z;
    auto a = st[k].insert(z).first;
    if(a==st[k].begin()||l[*prev(a)]<l[z])
        t = max(t, calc(x, z-1));
    if(a==(--st[k].end())||l[*next(a)]>l[z])
        t = max(t, calc(z+1, y));
    return t;
}
int find_best(int n) {
	return calc(0,n-1);
}

Compilation message

prize.cpp: In function 'int calc(int, int)':
prize.cpp:8:14: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
    8 |     int z = x+y>>1;
      |             ~^~

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 9740 KB Output is correct
2 Correct 9 ms 9692 KB Output is correct
3 Correct 10 ms 9720 KB Output is correct
4 Correct 7 ms 9696 KB Output is correct
5 Correct 8 ms 9736 KB Output is correct
6 Correct 8 ms 9696 KB Output is correct
7 Correct 7 ms 9700 KB Output is correct
8 Correct 6 ms 9704 KB Output is correct
9 Correct 7 ms 9688 KB Output is correct
10 Correct 7 ms 9716 KB Output is correct

Subtask #2
80.0 / 80.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 9688 KB Output is correct
2 Correct 8 ms 9724 KB Output is correct
3 Correct 8 ms 9752 KB Output is correct
4 Correct 6 ms 9680 KB Output is correct
5 Correct 6 ms 9680 KB Output is correct
6 Correct 6 ms 9692 KB Output is correct
7 Correct 7 ms 9700 KB Output is correct
8 Correct 9 ms 9700 KB Output is correct
9 Correct 12 ms 9696 KB Output is correct
10 Correct 8 ms 9736 KB Output is correct
11 Correct 12 ms 10064 KB Output is correct
12 Correct 9 ms 10076 KB Output is correct
13 Correct 14 ms 10076 KB Output is correct
14 Correct 20 ms 9788 KB Output is correct
15 Correct 45 ms 10608 KB Output is correct
16 Correct 47 ms 10568 KB Output is correct
17 Correct 49 ms 10668 KB Output is correct
18 Correct 42 ms 10580 KB Output is correct
19 Correct 39 ms 10672 KB Output is correct
20 Correct 34 ms 10200 KB Output is correct
21 Correct 39 ms 10588 KB Output is correct
22 Correct 41 ms 10540 KB Output is correct
23 Correct 9 ms 9836 KB Output is correct
24 Correct 11 ms 9996 KB Output is correct
25 Correct 51 ms 10640 KB Output is correct
26 Correct 53 ms 10548 KB Output is correct
27 Correct 8 ms 9820 KB Output is correct
28 Correct 49 ms 10536 KB Output is correct
29 Correct 37 ms 10608 KB Output is correct
30 Correct 59 ms 10616 KB Output is correct
31 Correct 59 ms 10648 KB Output is correct
32 Correct 11 ms 10072 KB Output is correct
33 Correct 6 ms 9680 KB Output is correct
34 Correct 32 ms 10560 KB Output is correct
35 Correct 9 ms 9956 KB Output is correct
36 Correct 47 ms 10808 KB Output is correct
37 Correct 14 ms 9988 KB Output is correct
38 Correct 8 ms 9792 KB Output is correct
39 Correct 48 ms 10664 KB Output is correct
40 Correct 68 ms 10536 KB Output is correct
41 Correct 52 ms 10648 KB Output is correct
42 Correct 54 ms 10668 KB Output is correct
43 Correct 48 ms 10632 KB Output is correct
44 Correct 51 ms 10592 KB Output is correct
45 Correct 45 ms 10576 KB Output is correct
46 Correct 59 ms 10584 KB Output is correct
47 Correct 63 ms 10580 KB Output is correct
48 Correct 51 ms 10612 KB Output is correct
49 Correct 52 ms 10680 KB Output is correct
50 Correct 58 ms 10616 KB Output is correct
51 Correct 71 ms 10572 KB Output is correct
52 Correct 47 ms 10656 KB Output is correct
53 Correct 8 ms 9852 KB Output is correct
54 Correct 65 ms 10592 KB Output is correct
55 Correct 69 ms 10632 KB Output is correct
56 Correct 75 ms 10576 KB Output is correct
57 Correct 56 ms 10644 KB Output is correct
58 Correct 50 ms 10664 KB Output is correct
59 Correct 61 ms 10612 KB Output is correct
60 Correct 64 ms 10596 KB Output is correct
61 Correct 7 ms 9820 KB Output is correct
62 Correct 6 ms 9896 KB Output is correct
63 Correct 9 ms 9828 KB Output is correct
64 Correct 7 ms 9808 KB Output is correct
65 Correct 7 ms 9696 KB Output is correct
66 Correct 8 ms 9700 KB Output is correct
67 Correct 6 ms 9704 KB Output is correct
68 Correct 7 ms 9700 KB Output is correct
69 Correct 6 ms 9700 KB Output is correct
70 Correct 6 ms 9724 KB Output is correct
71 Correct 47 ms 10600 KB Output is correct
72 Correct 11 ms 10064 KB Output is correct
73 Correct 35 ms 10636 KB Output is correct
74 Correct 45 ms 10672 KB Output is correct
75 Correct 7 ms 9808 KB Output is correct
76 Correct 39 ms 10608 KB Output is correct
77 Correct 55 ms 10612 KB Output is correct
78 Correct 14 ms 10124 KB Output is correct
79 Correct 30 ms 10584 KB Output is correct
80 Correct 59 ms 10624 KB Output is correct
81 Correct 69 ms 10572 KB Output is correct
82 Correct 57 ms 10640 KB Output is correct
83 Correct 8 ms 9896 KB Output is correct
84 Correct 30 ms 10616 KB Output is correct
85 Correct 64 ms 10596 KB Output is correct
86 Correct 15 ms 10112 KB Output is correct
87 Correct 10 ms 9928 KB Output is correct
88 Correct 11 ms 10052 KB Output is correct
89 Correct 11 ms 10064 KB Output is correct
90 Correct 7 ms 9808 KB Output is correct
91 Correct 9 ms 9932 KB Output is correct
92 Correct 7 ms 9708 KB Output is correct
93 Correct 9 ms 9928 KB Output is correct
94 Correct 8 ms 9968 KB Output is correct
95 Correct 8 ms 9976 KB Output is correct
96 Correct 9 ms 9980 KB Output is correct
97 Correct 6 ms 9680 KB Output is correct